Best time to fly San Bartolomé to Newcastle upon Tyne

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full ACE to NCL record →

Best month

December

83.3% on time · 48 flights

Worst month

September

48.8% on time · 43 flights

Month Flights On time Cancelled When late, by
January 102 76% 1.96% 0 min
February 88 76.1% 0% 0 min
March 94 67% 0% 0 min
April 97 60.8% 0% 0 min
May 75 65.3% 0% 0 min
June 73 60.3% 0% 0 min
July 43 58.1% 0% 0 min
August 45 68.9% 0% 0 min
September 43 48.8% 0% 0 min
October 45 66.7% 0% 0 min
November 49 69.4% 0% 0 min
December 48 83.3% 0% 0 min

What a seasonal pattern can and cannot tell you

Months differ for reasons that repeat — summer thunderstorms in the American interior, winter fog and de-icing in northern Europe, school holidays filling every seat and leaving no slack in the schedule. Those are real and they come back each year.

What the pattern cannot do is forecast a particular flight. A quiet month has late days and a bad month has punctual ones. Treat this as a way to choose between two dates you are indifferent about, not as a promise.